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The patent EP3068246 was granted to British American Tobacco on Aug 13, 2025. The application was filed on Nov 14, 2014 under application number EP14812874A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.
| Company | Opposition Date | Representative | Opposition Status |
|---|---|---|---|
| JAPAN TOBACCO | Dec 31, 2020 | SERJEANTS | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | EP0430559 |
| INTERNATIONAL-SEARCH-REPORT | US2007102013 |
| INTERNATIONAL-SEARCH-REPORT | US5060671 |
| INTERNATIONAL-SEARCH-REPORT | WO2013034454 |
| OPPOSITION | CN103202540 |
| OPPOSITION | US2011126848 |
| OPPOSITION | US2013276799 |
| OPPOSITION | US5060671 |
| OPPOSITION | US5479948 |
| OPPOSITION | US5499636 |
| OPPOSITION | US5613505 |
| OPPOSITION | WO2008110932 |
The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.
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(Electronic) Receipt
Search/Exam
Sep 29, 2020
Letter accompanying subsequently filed items
Search/Exam
Sep 29, 2020
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Decision to grant a European patent
Search/Exam
Feb 19, 2020
(Electronic) Receipt
Search/Exam
Feb 19, 2020
Filing of the translations of the claims
Search/Exam
Feb 19, 2020
French translation of claims
Search/Exam
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German translation of the claims
Search/Exam
Feb 19, 2020
Letter accompanying subsequently filed items
Search/Exam
Oct 24, 2019
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Intention to grant (signatures)
Search/Exam
Oct 24, 2019
Text intended for grant (clean copy)
Search/Exam
Oct 24, 2019
Sep 10, 2018
(Electronic) Receipt
Search/Exam
Sep 10, 2018
Amended claims with annotations
Search/Exam
Sep 10, 2018
Amended description with annotations
Search/Exam
Sep 10, 2018
Claims
Search/Exam
Sep 10, 2018
Description
Search/Exam
Sep 10, 2018
Letter accompanying subsequently filed items
Search/Exam
Sep 10, 2018
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Annex to the communication
Search/Exam
Jun 28, 2018
Communication from the Examining Division
Search/Exam
Jun 7, 2018
(Electronic) Receipt
Search/Exam
Jun 7, 2018
Claims
Search/Exam
Jun 7, 2018
Letter accompanying subsequently filed items
Search/Exam
Jun 7, 2018
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Annex to the communication
Search/Exam
Feb 15, 2018
Communication from the Examining Division
Search/Exam
Oct 18, 2017
(Electronic) Receipt
Search/Exam
Oct 18, 2017
Amended claims with annotations
Search/Exam
Oct 18, 2017
Claims
Search/Exam
Oct 18, 2017
Letter accompanying subsequently filed items
Search/Exam
Oct 18, 2017
Jun 22, 2017
Annex to the communication
Search/Exam
Jun 22, 2017
Communication from the Examining Division
Search/Exam
Jun 12, 2017
Examination started
Search/Exam
Dec 13, 2016
(Electronic) Receipt
Search/Exam
Dec 13, 2016
Dec 13, 2016
Amendments received before examination
Search/Exam
Dec 13, 2016
Letter accompanying subsequently filed items
Search/Exam
Sep 21, 2016
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Letter which had not been notified
Search/Exam
Jun 24, 2016
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Communication to designated inventor
Search/Exam
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Communication to designated inventor
Search/Exam
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Communication to designated inventor
Search/Exam
May 31, 2016
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(Electronic) Receipt
Search/Exam
May 16, 2016
Request for entry into the European phase
Search/Exam
Mar 29, 2016
Information on entry into European phase
Search/Exam
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Copy of the international search report
Search/Exam
May 21, 2015
Published international application - A1
Search/Exam
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Dec 19, 2014
Abstract
PCTISA
Dec 19, 2014
Claims
PCTISA
Dec 19, 2014
Description
PCTISA
Dec 19, 2014
Drawings
PCTISA